Subtracting 2-Digit Numbers

In subtracting 2-digit numbers we will subtract or minus a two-digit numberfrom another two-digit number. To find the difference between
the two numbers we need to ‘ones from ones’ and ‘tens from tens’.

How to subtract two digit numbers?

The steps of the examples
on subtracting 2-digit numbers i.e. ‘ones from ones’ and ‘tens from tens’:

1. Subtract 41
from 63.

(i) First arrange the
numbers vertically so that the tens' place digits and ones' place digits are
lined up which means in simple one number should be written above the other
number. Draw a line under the bottom number.

(ii) Subtract the digits in the ones place. Subtract (3
- 1 = 2). Place 2 in the ones column as shown.

(iii) Subtract the digits in the tens' place. Subtract (6 -
4 = 2). Place 2 in the tens column as shown.

(iv) The difference of 63 – 41 is 22

2. Subtract 52
from 86.

(i) First arrange the
numbers vertically so that the tens' place digits and ones' place digits are
lined up which means in simple one number should be written above the other
number. Draw a line under the bottom number.

(ii) Subtract the digits in the ones place. Subtract (6
- 2 = 4). Place 4 in the ones column as shown.

(iii) Subtract the digits in the tens' place. Subtract (8 -
5 = 3). Place 3 in the tens column as shown.

(iv) The difference
of 86 - 52 is 34

3. Subtract 42
from 78

Solution:

(i) Given numbers are written in column form. The greater
number is written first, then the smaller number is written.

(ii) First, the digits of one’s place are taken. 2 is
subtracted from 8. T O

8 ones – 2 ones = 6 ones. This 6 is written in one’s
column. 7 8

(iii) Now digits of tens place are written 4 is
subtracted from 7. - 4 2

7 tens – 4 tens = 3 tens. This 3 is written in tens column. 3 6

Hence, 78 – 42 = 36

In subtraction there
are three numbers as:

95 ← the number from which smaller number
is subtracted is called minuend.

- 23← the number to be subtracted is called
the subtrahend.

72← the
number which is the subtracted result is called the difference.

Here, in subtracting 2-digit numbers we get 95 is
minuend, 23 is subtrahend and 72 is difference.